80971808

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:465

約数の個数: 48

約数和(自身を含む): 163404864

約数和(自身を除く): 82433056

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 157, 227, 284, 314, 454, 568, 628, 908, 1136, 1256, 1816, 2272, 2512, 3632, 5024, 7264, 11147, 16117, 22294, 32234, 35639, 44588, 64468, 71278, 89176, 128936, 142556, 178352, 257872, 285112, 356704, 515744, 570224, 1140448, 2530369, 5060738, 10121476, 20242952, 40485904, 80971808]

約数ペア:

[(1, 80971808), (2, 40485904), (4, 20242952), (8, 10121476), (16, 5060738), (32, 2530369), (71, 1140448), (142, 570224), (157, 515744), (227, 356704), (284, 285112), (314, 257872), (454, 178352), (568, 142556), (628, 128936), (908, 89176), (1136, 71278), (1256, 64468), (1816, 44588), (2272, 35639), (2512, 32234), (3632, 22294), (5024, 16117), (7264, 11147)]